Endress+Hauser OUSTF10 User manual

Products Solutions Services
Operating Instructions
OUSTF10
Optical sensor with the OUA260 flow assembly for
the measurement of undissolved solids
BA00500C/07/EN/03.24-00
71643600
2024-01-31

Table of contents OUSTF10
2 Endress+Hauser
Table of contents
1 About this document ........... 3
1.1 Warnings ........................... 3
1.2 Symbols ............................ 3
1.3 Symbols on the product ............... 3
2 Basic safety instructions ....... 4
2.1 Requirements of the personnel ......... 4
2.2 Intended use ........................ 4
2.3 Workplace safety .................... 4
2.4 Operational safety ................... 5
2.5 Product security ..................... 5
3 Product description ............. 6
3.1 Sensor design ....................... 6
3.2 Measuring principle .................. 6
4 Incoming acceptance and
product identification .......... 7
4.1 Incoming acceptance ................. 7
4.2 Product identification ................. 8
4.3 Manufacturer address ................ 8
4.4 Scope of delivery ..................... 8
5 Mounting procedure ............ 9
5.1 Mounting requirements ............... 9
5.2 Mounting the sensor ................ 12
5.3 Post-mounting checks ............... 13
6 Electrical connection .......... 13
6.1 Connecting the sensor ............... 13
6.2 Lamp voltage ....................... 14
6.3 Versions for use in hazardous areas .... 14
6.4 Ensuring the degree of protection ..... 17
6.5 Post-connection check ............... 18
7 Commissioning ................ 19
7.1 Function check ..................... 19
7.2 Calibrating/adjusting the sensor ...... 19
8 Maintenance .................. 21
8.1 Maintenance schedule ............... 21
8.2 Replacing the hazardous area lamp .... 22
8.3 Replacing the collimated incandescent
lamp .............................. 22
8.4 Replacing the sensor window and seal .. 24
9 Repair .......................... 26
9.1 General notes ...................... 26
9.2 Spare parts ........................ 26
9.3 Return ............................ 26
9.4 Disposal ........................... 26
10 Accessories .................... 27
10.1 Flow assembly ...................... 27
10.2 Cable ............................. 27
11 Technical data ................. 28
11.1 Input .............................. 28
11.2 Environment ....................... 28
11.3 Process ............................ 28
11.4 Mechanical construction ............. 29
Index ................................. 30

OUSTF10 About this document
Endress+Hauser 3
1 About this document
1.1 Warnings
Structure of information Meaning
LDANGER
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious injury.
LWARNING
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious injury.
LCAUTION
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.
NOTICE
Cause/situation
If necessary, Consequences of non-
compliance (if applicable)
‣Action/note
This symbol alerts you to situations which may result in damage to property.
1.2 Symbols
Additional information, tips
Permitted
Recommended
Not permitted or not recommended
Reference to device documentation
Reference to page
Reference to graphic
 Result of an individual step
1.3 Symbols on the product
Reference to device documentation
Do not dispose of products bearing this marking as unsorted municipal waste. Instead, return them to the
manufacturer for disposal under the applicable conditions.

Basic safety instructions OUSTF10
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2 Basic safety instructions
2.1 Requirements of the personnel
• Installation, commissioning, operation and maintenance of the measuring system may be
carried out only by specially trained technical personnel.
• The technical personnel must be authorized by the plant operator to carry out the specified
activities.
• The electrical connection may be performed only by an electrical technician.
• The technical personnel must have read and understood these Operating Instructions and
must follow the instructions contained therein.
• Faults at the measuring point may only be rectified by authorized and specially trained
personnel.
Repairs not described in the Operating Instructions provided must be carried out only
directly at the manufacturer's site or by the service organization.
2.2 Intended use
The scattered light turbidity sensor is used to measure undissolved solids, emulsions and
immiscible media in process liquids. The sensor is suitable for use in a wide range of
applicationsin a variety of industrial sectors , such as:
• Outgoing goods inspection/purity monitoring
• Filter control
• Condensate regulation
• Turbidity measurement in
• Breweries
• Drinking water
• Brine
• Leak detection in heat exchanger
Any use other than that intended puts the safety of people and the measuring system at risk.
Therefore, any other use is not permitted.
The manufacturer is not liable for harm caused by improper or unintended use.
2.3 Workplace safety
As the user, you are responsible for complying with the following safety conditions:
• Installation guidelines
• Local standards and regulations
• Regulations for explosion protection
Electromagnetic compatibility
• The product has been tested for electromagnetic compatibility in accordance with the
applicable international standards for industrial applications.
• The electromagnetic compatibility indicated applies only to a product that has been
connected in accordance with these Operating Instructions.

OUSTF10 Basic safety instructions
Endress+Hauser 5
2.4 Operational safety
Before commissioning the entire measuring point:
1. Verify that all connections are correct.
2. Ensure that electrical cables and hose connections are undamaged.
3. Do not operate damaged products, and protect them against unintentional operation.
4. Label damaged products as defective.
During operation:
‣If faults cannot be rectified,
take products out of service and protect them against unintentional operation.
2.5 Product security
2.5.1 State of the art
The product is designed to meet state-of-the-art safety requirements, has been tested, and
left the factory in a condition in which it is safe to operate. The relevant regulations and
international standards have been observed.
2.5.2 Versions with hazardous area lamp
‣Observe the safety instructions in the XA pertaining to this manual.
Safety instructions for electrical equipment in hazardous areas, photometer sensors,
XA01403C

Product description OUSTF10
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3 Product description
3.1 Sensor design
1 12 34
5 5
A0054700
 1 Sensor with flow assembly OUA260
1 Cable connection
2 Lamp module
3 Flow assembly OUA260 (depending on version)
4 Detector module
5 Connection for air purge function (optional)
The detector and lamp can vary on account of the individual options ordered.
3.2 Measuring principle
Turbidity
Turbidity refers to the appearance of a liquid that contains suspended particles. The presence
of these particles causes the light to be scattered and absorbed, giving the liquid a turbid, or
cloudy, appearance. The amount of light scattered or absorbed in a liquid can be used in a
measuring system to determine the degree of turbidity.
Scattered light method
A focused parallel beam of light is passed through the medium. This beam is known as the
transmitted light and is measured by a transmitted light detector. If the medium does not
contain any particles, the transmitted light detector detects all the light transmitted by the
light source.
If there are particles in the medium, the light is scattered in all directions, but primarily in a
forward direction. The optical system is designed such that the scattered light is measured at
an angle of 11°. This angle of measurement ensures that the maximum scattering signal
present is detected at the scattered light detector.

OUSTF10 Incoming acceptance and product identification
Endress+Hauser 7
1 2 34
5
68 7
A0029413
 2 Scattered light measurement
1 Light source (lamp)
2 Orifice plates and lenses
3 Scattered light
4 Scattered light detector
5 Transmitted light detector
6 Neutral broadband density filter with anti-reflex coating
7 Medium
8 Broadband NIR filter (780 nm +)
4 Incoming acceptance and product identification
4.1 Incoming acceptance
1. Verify that the packaging is undamaged.
 Notify the supplier of any damage to the packaging.
Keep the damaged packaging until the issue has been resolved.
2. Verify that the contents are undamaged.
 Notify the supplier of any damage to the delivery contents.
Keep the damaged goods until the issue has been resolved.
3. Check that the delivery is complete and nothing is missing.
 Compare the shipping documents with your order.
4. Pack the product for storage and transportation in such a way that it is protected
against impact and moisture.
 The original packaging offers the best protection.
Make sure to comply with the permitted ambient conditions.
If you have any questions, please contact your supplier or your local Sales Center.

Incoming acceptance and product identification OUSTF10
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4.2 Product identification
4.2.1 Nameplate
The nameplate provides you with the following information on your device:
• Manufacturer identification
• Order code
• Serial number
• Safety information and warnings
‣Compare the information on the nameplate with the order.
4.2.2 Identifying the product
Product page
www.endress.com/oustf10
Interpreting the order code
The order code and serial number of your product can be found in the following locations:
• On the nameplate
• In the delivery papers
Obtaining information on the product
1. Go to www.endress.com.
2. Page search (magnifying glass symbol): Enter valid serial number.
3. Search (magnifying glass).
 The product structure is displayed in a popup window.
4. Click the product overview.
 A new window opens. Here you fill information pertaining to your device, including
the product documentation.
4.3 Manufacturer address
Endress+Hauser Conducta Inc.
4123 East La Palma Avenue, Suite 200
Anaheim, CA 92807 USA
4.4 Scope of delivery
The scope of delivery comprises the following, :
• Detector and lamp module without flow assembly or
• Detector and lamp module mounted on flow assembly OUA260
• Operating Instructions
‣If you have any queries:
Please contact your supplier or local sales center.

OUSTF10 Mounting procedure
Endress+Hauser 9
5 Mounting procedure
5.1 Mounting requirements
5.1.1 Measuring system
An optical measuring system comprises:
• Sensor (photometer) OUSTF10
• Transmitter, e. g. Liquiline CM44P
• Cable set, e. g. CUK80
• Assembly OUA260
1 2
3
7
54
6
 3 Example of a measuring system with a photometer sensor
1 Pipe 5 Flow assembly OUA260
2 Transmitter CM44P 6 Sensor: light source (lamp)
3 CUK80 cable set 7 CUK80 cable set
4 Sensor: detector

Mounting procedure OUSTF10
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5.1.2 Dimensions
A B
C
A0031511
 4 Sensor module
A Dimension of lamp → Table
B Dimension of detector → Table
C Assembly; see Technical Information for assembly
Lamp type Dimension A in mm (inch)
Collimated incandescent lamp 151.3 (5.96)
Detector type Dimension B in mm (inch)
OUSTF10 101.6 (4.0)
102.8 (4.05)
The total length of the sensor module is derived from the lengths of the lamp, the
detector and the assembly.
The dimensions of the OUA260 assembly are provided in Technical Information,
TI00418C.
‣Allow an additional gap of 5 cm (2") on both the lamp side and detector side of the sensor
to connect the sensor cable.